PROPERTIES OF BLACK OILS - Petroleum Reservoir Fluid Property Correlations - page 51

10

0

-10

-20

-30

-40

50

40

30

20

10

0

0 500 1000 1500 2000 2500 3000 3500 4000

Reservoir Pressure, psia

Velarde et al., p b from data
Velarde et al., p b from Eqs. 3.7
Standing

Glaso

Vazquez-Beggs

Kartoatmodjo-Schmidt

Fig. 3-5. Average relative errors and average absolute relative errors of subsets of the data
described in table 3-9 sorted on reservoir pressure show the quality of selected correlation
equations for estimating solution gas-oil ratios at pressures less than bubblepoint pressures across
the full range of this independent variable.